87 lines
2.1 KiB
Ruby
87 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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# This module handles backward compatibility for import/export of merge requests after
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# multiple assignees feature was introduced. Also, it handles the scenarios where
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# the #26496 background migration hasn't finished yet.
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# Ideally, most of this code should be removed at #59457.
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module DeprecatedAssignee
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extend ActiveSupport::Concern
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def assignee_ids=(ids)
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nullify_deprecated_assignee
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super
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end
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def assignees=(users)
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nullify_deprecated_assignee
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super
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end
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def assignee_id=(id)
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self.assignee_ids = Array(id)
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end
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def assignee=(user)
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self.assignees = Array(user)
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end
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def assignee
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assignees.first
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end
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def assignee_id
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assignee_ids.first
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end
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def assignee_ids
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if Gitlab::Database.read_only? && pending_assignees_population?
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return Array(deprecated_assignee_id)
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end
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update_assignees_relation
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super
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end
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def assignees
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if Gitlab::Database.read_only? && pending_assignees_population?
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return User.where(id: deprecated_assignee_id)
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end
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update_assignees_relation
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super
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end
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private
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# This will make the background migration process quicker (#26496) as it'll have less
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# assignee_id rows to look through.
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def nullify_deprecated_assignee
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return unless persisted? && Gitlab::Database.read_only?
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update_column(:assignee_id, nil)
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end
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# This code should be removed in the clean-up phase of the
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# background migration (#59457).
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def pending_assignees_population?
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persisted? && deprecated_assignee_id && merge_request_assignees.empty?
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end
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# If there's an assignee_id and no relation, it means the background
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# migration at #26496 didn't reach this merge request yet.
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# This code should be removed in the clean-up phase of the
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# background migration (#59457).
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def update_assignees_relation
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if pending_assignees_population?
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transaction do
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merge_request_assignees.create!(user_id: deprecated_assignee_id, merge_request_id: id)
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update_column(:assignee_id, nil)
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end
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end
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end
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def deprecated_assignee_id
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read_attribute(:assignee_id)
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end
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end
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